Pathfinder 4WD V6-4.0L (VQ40DE) (2006)
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Equally loosen camshaft bracket bolts in several steps in reverse order as shown.
5. Remove camshafts.
6. Remove valve lifters.
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Identify installation positions, and store them without mixing them up.
7. Remove timing chain tensioner (secondary) from cylinder head.
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Remove timing chain tensioner (secondary) with its stopper pin attached.
NOTE: Stopper pin was attached when timing chain (secondary) was removed.
INSTALLATION
1. Install timing chain tensioners (secondary) on both sides of cylinder head.
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Install timing chain tensioner with its stopper pin attached.
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Install timing chain tensioner with sliding part facing downward on right-side cylinder head, and with sliding part facing upward on left-side
cylinder head.
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Install new O-rings as shown.
2. Install valve lifters.
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Install it in the original position.